# 339th Flight Test Squadron

The 339th Flight Test Squadron is a United States Air Force unit based at Robins Air Force Base, Georgia. It is part of the Warner Robins Air Logistics Center, with a mission to certify aircraft as worthy to return to service. The squadron is responsible for conducting flight tests on the Lockheed C-130 Hercules, the Lockheed C-5 Galaxy and McDonnell Douglas F-15 Eagle after program depot maintenance is completed.
Along with their flight test responsibilities, the squadron also picks up and delivers aircraft, including battle-damaged aircraft, to locations where they are needed or can be repaired.
During World War II, the squadron was given, and successfully carried out, the assignment to shoot down the plane carrying Imperial Japanese Navy Admiral Isoroku Yamamoto in Operation Vengeance.

## History
### World War II

Combat in South and Southwest Pacific, c. 22 October 1942 – 8 August 1945. As the 339th Fighter Squadron, notably carried out Operation Vengeance on 18 April 1943, resulting in the death of Japanese admiral Isoroku Yamamoto, who had planned the attack on Pearl Harbor. Multiple pilots in the squadron earned the Navy Cross for their roles in the mission.

### Air defense of Japan and Korean War

The squadron was reactivated on 20 February 1947, when it took over the personnel and aircraft from the 6th Night Fighter Squadron, which was simultaneously inactivated. Air defense in Japan, 1946–1958. Combat in Korea, 27 June – 5 July 1950.

### Tactical Air Command

The squadron was inactivated in August 1983 and its personnel and aircraft were transferred to the 69th Tactical Fighter Squadron, which was simultaneously activated.

### Flight test operations

Tested possible modifications for various weapons systems, 1988–.

## Lineage
### 339th Tactical Fighter Squadron

* Constituted as the 339th Fighter Squadron on 29 September 1942
    Activated on 3 October 1942
    Redesignated 339th Fighter Squadron (Twin Engine) on 23 February 1943
    Redesignated 339th Fighter Squadron, Two Engine on 20 August 1943
    Inactivated on 1 January 1946
* Redesignated 339th Fighter Squadron, Single Engine on 13 July 1946
    Activated on 25 August 1946
    Redesignated 339th Fighter Squadron (All Weather) on 20 February 1947
    Redesignated 339th Fighter Squadron, All Weather on 10 August 1948
    Redesignated 339th Fighter-All Weather Squadron on 20 January 1950
    Redesignated 339th Fighter-Interceptor Squadron on 25 April 1951
    Inactivated on 15 January 1958
* Redesignated 339th Tactical Fighter Squadron on 19 December 1975
    Activated on 30 December 1975
    Inactivated on 1 July 1983
* Consolidated with the 2875th Test Squadron as the 339th Test Squadron on 1 October 1992

### 339th Flight Test Squadron

* Designated as the 2875th Test Squadron and activated on 15 January 1988
* Consolidated with the 339th Tactical Fighter Squadron as the 339th Test Squadron on 1 October 1992
    Redesignated 339th Flight Test Squadron on 15 March 1994

### Aircraft operated

* Curtiss P-40 Warhawk P-40, 1942
* Bell P-39 Airacobra, 1942–1943
* Lockheed P-38 Lightning, 1942–1945
* Northrop P-61 Black Widow (later F-61, 1947–1950
* North American F-82 Twin Mustang, 1949–1951
* Lockheed F-94 Starfire, 1951–1955
* Lockheed F-80 Shooting Star, 1953–1954
* North American F-86 Sabre, 1955–1957
* McDonnell F-4 Phantom II, 1976–1983